#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main(void)
{
    time_t t;
    struct tm * tmp;
    char buf1[16];
    char buf2[64];

    time(&t);
    tmp = localtime(&t);
    if (strftime(buf1, 16, "time and date: %R:%S, %a %b %d, %Y", tmp) == 0)
        fprintf(stderr, "buffer length 16 is too small\n");
    else
        printf("%s\n", buf1);

    if(strftime(buf2, 64, "time and date: %R:%S, %a %b %d, %Y", tmp) == 0)
        fprintf(stderr, "buffer length 64 is to samll\n");
    else
        printf("%s\n", buf2);

    return 0;
}
